Door-fastener



UNITED STATES PATENT OFFICE.

LEGRAND OROFOOT, OF SYRACUSE, NEW YORK.

DOOR-FASTENER.

Specification of Letters Patent No. 16,048, dated November 11, 1856.

To all whom it may concern:

Be it known that I, LEGRAND Onoroor, of Syracuse, in the county of Onondaga and State of New York, have invented certain new and useful Improvements in Door- I=`astenersg and I do hereby declare that the following is a full and exact description.

thereof, reference being had to the accompanying drawing, in which- Figure l represents the front elevation and Fig. 2, a side elevation of my improved door fastener. Figs. 3, Ll, and 5 show the different views of the same contrivance when locked.

The object of the door fastener is to lock from the inside of the room doors, where there are no permanentlocks attached to or where no reliability can be placed in the existing locks. It is therefore a portable instrument invented for the use of travelers with the view of promoting their personal safety and comfort.

To enable others skilled in the arts to use and to construct my improved door fastener' I now proceed to describe its construction and its modas operandi. It is composed of two parts A and B, of unequal length and hinged together by a pin at p. The two parts are`cut out of a plate of suitable metal (brass for instance) in such a manner as to leave provision for the hinge, which is made of a slip or slips of the metal plate by bending and rounding it over a proper tool. The other extremity is also bent, but at a right angle with the plate A or B. These, shown as a and answer two different purposes: the first, a is a hook, which is intended to penetrate the wood of the door-post or case and acts as a clasp, which cannot be removed, when the door is shut. The other b is a stop, which, when the 2 plates A and B are locked, will prevent the door from being opened. The function of each of the 2 plates being now understood, it is necessary to explain the other parts, which are appurtenances for the purpose of insuring infallibility and nicety in operation. The plate A is furnishedV on the outside with a spring bolt sliding in two mortises m and m; it is kept permanently locked, or in the position shown in the annexed drawing, by a spiral spring, wound around its shank, and requires to be pulled back, in order to disengage the projecting eyehook 7/ of the plate B, which corresponds to a slot in the plate A. Then the two plates are closed the spring bolt will be pushed back gradually until the bar of the eyehook shall have passed it, the spring will then be relieved and force the bolt forward to catch the hook in the eye and keep it firmly locked until is is purposely disengaged.

The plate B may be armed with a spring in order to cause its iiying of, when it is disengaged by pulling back the spring bolt.

The advantages of my improved door fastener, over other, consist in the simplicity of its construction and the infallibility of operation. i

That I claim as my invention, and desire to secure by Letters Patent is:

Combining the two plates A and B constructed in the manner described with the spring bolt of the plate A and the eyehook gj of the plate B.

In testimony whereof I have signed my name to this speciiication before two sub scribing witnesses.

LEGRAND OROFOOT.

Witnesses WILLIAM H. WILLIAMS, OHAs. E. MGLEAN. 

